Home / 55,396.32-76,463.28-38,634.72

Finding the Fourth Proportional to 55,396.32, 76,463.28 and 38,634.72

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Solution

The fourth proportional to 55,396.32, 76,463.28 and 38,634.72 is: 53,327.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,396.32 : 76,463.28 = 38,634.72 : x
  2. Step 2: Convert to fraction form
    55,396.32/76,463.28 = 38,634.72/x
  3. Step 3: Cross multiply
    55,396.32x = 76,463.28 × 38,634.72
  4. Step 4: Simplify right side
    55,396.32x = 2,954,137,413.08
  5. Step 5: Solve for x
    x = 2,954,137,413.08/55,396.32
  6. Step 6: Final answer
    x = 53,327.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.